Guevarra

An aging ex-boxer gangster working as muscle for a Boston crime boss receives an upsetting diagnosis. Despite a faltering memory, he attempts to rectify the sins of his past and reconnect with his estranged children. He is determined to leave a positive legacy for his grandson, but the criminal underworld isn’t done with him and won’t loosen their grip willingly.

Nick and Ruben are hoodwinked into a "shootfighter" (no-holds-barred, to the death) martial arts match by the evil Mr. Lee, who has a grudge against world shootfighter champ(and teacher of Nick and Ruben) Shingo.

After his police officer brother is killed by a drug dealer who flees to the protection of his cartel-connected uncle in Mexico, an American man with a diverse law enforcement/military background goes south of the border to get revenge

When his brother is killed, LAPD officer Mark leaves the city to return to the island he grew up on. Seeking answers and ultimately vengeance, he soon finds himself in a bloody battle with the corrupt tycoon who's taken over the island paradise.